Cardboard box



. H L. GREVE CARDBOARD Box April 17, 1934.

Filed Jan. 14, 1931 1. 1 1 1 I 4 1 l f INVENTOR ATTORNEY closed.

Patented Apr. 17, 1934 CARDBOARD BOX Herman L. Greve, Hollis, N. Y., assigner to International Mailing Tube and Wrapper Company, Long Island City, N. Y.

Application January lll, 1931, Serial No. 508,650

4 Claims.

My invention relates to cardboard boxes and cartons.

One object of my invention is to provide a box or carton having a flat cover of sti cardboard or similar material with slits incised therethru which are adapted to open and permit the cover to expand and bulge over contents heaped above the top edges or" the box and at the same time provide ventilation thru the cover. A further object is to provide a ventilated shipping box or carton which Will closely corinne such contents as fruit or vegetables, even though such contents may settle substantially in transit or shrink, thus preventing the fruit or vegetables from spoiling because of jarring or rubbing against the walls oi the carton or against each other.

Referring te the drawing which forms a part oi this specificatienz Figure l is a perspective view of the box illustrating my invention.

Figure 2 is a longitudinal sectional View of a portion of the box showing the slits in their normal closed condition prior to the box being iled.

Figure 3 is a longitudinal sectional view of a portion of the box and cover showing the cover in its bulged condition with the edges of the slits separated to admit air to the interior of the box.

10 indicates the body portion of the box and ll a cover therefor.

12 indicates slits which extend from near one side ci the cover to the opposite side as illustrated.

The cover is preferably made from a single sheet of material which isV iolded to provide downwardly extending side portions 13 and end portions le the ilap portions 15 at each end. The nap portion being secured to the body of the box by metal clip 16 which extends thru openings i7 formed in each ap.

As illustrated in Figure 2, the cover top is normally dat and the slits l2 are normally I-iowever, when the box is properly heaped above its top with contents and the cover is pressed into assembled relation on the box, the under side of the cover engages the heaped portion of the contents and is thus expanded into the bulged condition shown in Figure l. This expansion is allowed for by the slits 12 which immediately open and thereafter serve to ventilate the box. At the saine time, the Slat-like sections of the top between the slits are twisted slightly in bulging and spreading apart over the heaped contents against which they press because oi their tendency to iiex back into their original flat form. Therefore, if the contents settle in transit or shrink, the cover attens down in proportion and confines the contents so that they will not jostle or rub against the walls of the box or against each other.

Viewed in one aspect, the sections of the cover lying between the slits 12 (Fig. 1) may be described as a plurality of parallel slats joined integral at their ends and formed by parallel slitted incisions thru the cover.

prefer to space the slits at equal distances from each other, but may arrange them at any desired distance apart and in any desired iorrn.

The construction is such that the cost of making the container is no greater than in making a container having imperforate top or cover.

Having thus described my invention I claim as newz 1. A shipping box for fruit or vegetables having a fiat cover of cardboard, said cover having a plurality of parallel slits incised therethru intermediate its edges arranged to provide a plurality of bulgeable Slat-like sections, and means for fastening the cover to the box.

2. A shipping box for fruit or vegetables having a flat cover of cardboard, said cover coinprising a plurality oi parallel slats integral at their ends and formed by parallel slitted incisions thru the cover, the arrangement being such that said slats will bulge to permit expansion of the cover over contents heaped above the top oi the box and will separate in the act of bulging to provide ventilation therebetween thru the cover.

3. A cardboard cover for a fruit or vegetable shipping box comprising a iiat top portion and downwardly extending side and end portions, said top portion having parallel slits incised therethru intermediate its edges arranged to provide a plurality of parallel and bulgeable slet-like sections.

4. The structure defined in claim 3, and means for fastening downwardly extending portions of the cover to a box.

HERMAN L. GREVE. 

